<template>
  <view>
    <!-- 购物车结算组件 -->
    <view class="my-settle-container">
      <!-- 全选 -->
      <label class="radio" @click="changeAllState">
        <radio color="#c00000" :checked="isFullCheck" /><text>全选</text>
      </label>
      
      <!-- 合计 -->
      <view class="amount-box">
        合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
      </view>
      <!-- 结算按钮  -->
      <view class="btn-settle" @click="settlement">结算{{checkedCount}}</view>
    </view>
  </view>
</template>

<script>
  import { mapGetters,mapMutations,mapState } from "vuex"
  export default {
    name:"my-settle",
    data() {
      return {
        
      };
    },
    computed:{
      ...mapGetters('m_cart', ['total', 'checkedCount', 'checkedGoodsAmount']),
      // addstr 是详细的收货地址
      ...mapGetters('m_user', ['addstr']),
      // token 是用户登录成功之后的 token 字符串
      ...mapState('m_user', ['token']),
      // 2. 是否全选
      isFullCheck() {
        return this.checkedCount===this.total
      }
    },
    methods:{
      ...mapMutations('m_cart',['updateAllGoodsState']), 
      changeAllState(){
        this.updateAllGoodsState(!this.isFullCheck)
      },
      // 点击了结算按钮
      settlement() {
        // 1. 先判断是否勾选了要结算的商品
        if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
      
        // 2. 再判断用户是否选择了收货地址
        if (!this.addstr) return uni.$showMsg('请选择收货地址！')
      
        // 3. 最后判断用户是否登录了
        if (!this.token) return uni.$showMsg('请先登录！')
      }
      
    }
  }
</script>

<style lang="scss">
.my-settle-container{
  position: fixed;
  bottom: 0px;
  left: 0px;
  width: 100%;
  height: 50px;
  background-color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 5px;
  font-size: 14px;
  .radio{
    display: flex;
    align-items: center;
  }
  
  .amount-box{
    .amount{
      font-weight: 700;
      color: #c00000;
    }
  }
  
  .btn-settle{
    background-color: #c00000;
    color: white;
    height: 50px;
    line-height: 50px;
    text-align: center;
    min-width: 100px;
    padding: 0 10px;
  }
}
</style>